<template>
  <div class="container">
    <el-container class="home-container">
      <el-header>
        <div>
          <img src="../assets/logo.png" alt="">
          <span>XX电商后台管理系统</span>
        </div>
        <el-button type="info" @click="logout">退出</el-button>
      </el-header>
      <el-container>
        <el-aside :width="isCollapse?'64px':'200px'">
          <!-- 切换按钮 -->
          <div class="triggle-btn" @click="triggleCollapse">|||</div>
          <!-- 侧边栏菜单区域 -->
          <el-menu background-color="#333744" text-color="#fff" active-text-color="#409eff"
            unique-opened :collapse="isCollapse" :collapse-transition="false" router
            :default-active="activePath">
            <!-- 一级菜单 -->
            <el-submenu :index="'/'+item.path" v-for="item in menuList" :key="item.id">
              <!-- 一级菜单的模块区域 -->
              <template slot="title">
                <!-- 图标 -->
                <i :class="iconsObj[item.id]"></i>
                <!-- 文本 -->
                <span>{{item.authName}}</span>
              </template>
              <!-- 二级菜单 -->
              <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children"
                :key="subItem.id" @click="switchPath('/'+subItem.path)">
                <!-- 二级菜单的模块区域 -->
                <template slot="title">
                  <!-- 图标 -->
                  <i class="el-icon-menu"></i>
                  <!-- 文本 -->
                  <span>{{subItem.authName}}</span>
                </template>
              </el-menu-item>

            </el-submenu>

          </el-menu>
        </el-aside>
        <el-main>
          <router-view></router-view>
        </el-main>
      </el-container>
    </el-container>
  </div>
</template>

<script>
import { CLIENT_RENEG_LIMIT } from 'tls'
export default {
  data() {
    return {
      menuList: [],
      iconsObj: {
        '125': 'iconfont icon-user',
        '103': 'iconfont icon-tijikongjian',
        '101': 'iconfont icon-shangpin',
        '102': 'iconfont icon-danju',
        '145': 'iconfont icon-baobiao'
      },
      isCollapse: false,
      activePath: ''
    }
  },
  created() {
    this.getMenuList()

    // 获取当前路由缓存信息
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    // 注销方法，清空token的session，跳转到登录页
    logout() {
      window.sessionStorage.clear()
      this.$router.push('./login')
    },
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      // console.log(res);
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)

      this.menuList = res.data
    },
    triggleCollapse() {
      this.isCollapse = !this.isCollapse
    },
    switchPath(path) {
      window.sessionStorage.setItem('activePath', path)
      this.activePath = path
    }
  }
}
</script>

<style lang="less" scoped>
.el-header {
  background-color: #373d41;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  img {
    width: 60px;
    height: 56px;
  }
  color: #fff;
  font-size: 20px;

  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}
.el-aside {
  background-color: #333744;
  .triggle-btn {
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: 5px;
    background-color: #4a5064;
    cursor: pointer;
  }
  .el-main {
    // 自带的1px右边框线导致子菜单突出显示，这是一个解决办法，
    border-right: 0px;
  }
}
.el-main {
  background-color: #eaedf1;
}
.home-container {
  height: 100%;
}
.iconfont {
  margin-right: 10px;
}
</style>